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Your body gets its energy from a molecule called ATP (adenosine triphosphate), which has three phosphate groups in it. If you really want to understand how exercise produces changes in your body, it helps to know a little bit of biology...

It is nothing short of amazing how many ways people can come up with to tweak this program. I've received hundreds and hundreds of questions with all sorts of minor adjustments. I will try to cover the most basic here.

The core of the Nutrition aspect of this program is to eat 6 limited, high quality meals a day. As Bill says, 'A meal doesn't mean you have Mom lay out a napkin, and put a fancy plate of food out there.'

There are several ways of obtaining bodyfat readings, ranging from hand-held calipers to water submersion pods. I prefer calipers. You can have somebody at a local health club do it, or you can follow the directions below.